Valve



` l f *T azz ammirata/Tamm .a

` JOHN ix. Renner NEWXORK; N. r.

` l f fs'rEAM-ENGINE vALvEL* r `i spflcatianof"LettersPatent N. 12,873; dated May 15, 1855.

L `the city and county of" York, have in` vented a new and 'useful y Improvement in a Valves for Steam-Engines; Applicable t0 Any `Steam-liinginje,"but"` More particularly to ``Locom()tive [Steam-Engines; andI` do herebyydeclarefthaltfthefollowing is a full andexact deseriptionof themanner of con-` structingthe same, reference being; made to the acccnnpanyin`g` Wgherein-` i g Figure l, al` plan' of i a steam cylinder a, Withthe ,steam passager, and `the exhaust f passage 75, theheadof ing supported` in "aylugl A9. e,\is an arm `k@whichoperatesthe fvalveby means ofthe "stop Atand A6, eachiaced With a Washer i atfad nl, the air.. chamber m, the ejection aperture 7c, `and the headof `the Water cyl- V inder o,the `frame b"of.`the cylinder a, and the cylinder h is castjvvith the cylinder and l form` apart therecif. n`

FigicQ, is a lofgitudinalisectionf through `1 the 'line A, B, showinglthejsteam passage r *the valve rod yg/,the steam `iport orpassage {3d-a2, b2, the vaiveje, @the Sapa and a6, the

lugs o, a9, the "pistonfb,` piston rod 0, Working through a"stuiing"`f box d, an arm e,

" Whichpoperates thevalvevbyfmeans of they y stop"ea`ch "stop lfaced with indiay rubber `or `3"5`leather"`a`5, a7. The piston` rod` @Working through a second stuiiing box f, is attached n "to aipiston headas." 1 The cylinder h is inclosedbya casing of metal g, which, with the cylinder `forms a Water passage z', the `1.1.0 suction pipe being33shoWn `at aQ-,the ejec- @tion pipe `at lc, the valvesn, a, n, n.

g Fig.` 3, is the "end ofthe steam cylinder a, and valve seat a", a2. Fig. 4 is the; end g of `the Water cylinder L, with thevalve seat p."1Fig. 5, is a view of a Water valve n. Y The same letters refer to like parts. f

To enableg others skilled in ,the art to l which my invention appertains to construct the same, If construct a 'cylinder of iron 0:,

` which is to; be boredto-aregular diameter 1 and to be inclosed `at each end in the usual manner ofsecuringand packing the heads of a steam cylinder, the piston b, is to be i y V properly secured to ampiston `rod c, which 551is to operate through a stuffing box d, let into the head of the steam cylinder in the l `Befitiknovvn "that Il, JOHN A." REED, of

the aperture la.

usual Way; upon thepiston rod is an arm e,

properly secured; t-he piston' rod beyond the r arm passing through a second stuffing box if, let in'tothe iron casing g, and thewater cylinder 7L,"`tl`ie Water cylinder is t'o be constructedin the usualvvay of iron, and bored fto ya regular diameter, With a passage between the cylinder and metal casing i, sufficient for the admission of the Water which is to lill the cylinder, and is to beV ejected at Situate immediately beheath the air chamber m; the Water valves n, n, ln., n, are shown in place and are 'semicircularlin shape, each being secured properly to permit the freeadmission and emission of the Wateryeither head o, o, of the `,Water cylinder being open With \diagonal arms' lor braces p, j), p, p, to keep the Water yalves in place, and which `may be secured againstthe arms, Which are constructed of' a brass plate 1n any Way most convenient.

'glhe steam passage r, is shown upon the uppersiderof the steamcylinder With the in- `jection s, and `exhaust t, passages, and also `the steam port or passage Z22, b2, attached to `the head u, of the steam cylinder is a button fu, Which is let intoV the cylinder head w, and into Which is inserted an end m, of the valve rod `y, the face of the button forming one side of the exhaust passage t.

The valve e, is constructed of brass of a cylindrical shape as shown, the face being turned truly, one face a operates as the injection; and the opposite face o2, as the `exhaust or ejection face, for the admission and exhaust of the steam When the engine is in operation; or the valves may be construct-ed of a double cone each face being turned truly `and arranged to fit the valve seat; a stuiiing box a3 is screwed into the cylinder head through Which the Valve rod passes; a metal stop a4 is secured to the valve rod With an india rubber or leather Washer a5 and Which Will give elasticity to the stop When the arm is set in motion to operate the valve rod, the rod passes `through a slot in the arm e, and beyond the arm is al second metal stop a6 with a like `india rubber or leather Washer a7, for a like purpose `as a5, that is to give elasticity to the stop When the arm is set in motion to operate the valve rod-the end of the valve rod resting in a lug a9 in the casing of the Water cylinder, the reciprocating motion of the piston rod operating the valves a, e, to admit and exhaust the steam to and from the cylinder, the operation of which sets in motion the piston as of the water cylinder, which is successively filled and emptied by means of the water valves n, which may be made of india rubber or leather; the water entering at the aperture 0,9%, upon the lower side of the cylinder and being ejected at in.

I have not considered it essential to give the dimensions for constructing the cylinders, piston rods, stuiling boxes, or any of the parts described, because any person oru dinarily skilled in the art of constructing steam and water machinery will have a knowledge of the necessary dimensions; it

is requisite, however, to say that I consider v it better to construct the piston rod of copper because that metal will not rust the valve rod of iron, the valves of brass, and the stops of iron. The air chamber should be properly secured to the casi'ng g, and at its greatest diameter should be equal to the diameter of the cylinder.

I have said that my improved valve is applicable to the steam engine; but more particularly to the locomotive steam engine. My reason is because of its simplicity and ease of management, being opened and closed by the motion of the piston rod, or by the cross head, and previous to the piston rod having reached the end of the stroke giving a lead to the steam to overcome the inertia of the piston and connecting rods, causing the crank to work more regular, and dispensing with eccentrics and rocking shaft; the pressure upon the valve from the steam pipe being nearly balanced, it requires4 but a small amount of pressure to operate the valve.

I have added a water cylinder and the necessary apparatus to operate the same in connection with the valve rod and valve, with a view to show the simplicity of my invention, and its applicability in forcing water as an engine. No part of the water apparatus however is claimed.

What I do claim as new and desire to secure by Letters Patent is- Beveling the edges of the cylindrical valve, or its equivalent, and beveling the edges of the steam ports, whereby I am enabled to move the valves within the ports; the beveled edges of the ports, thus being valve seats, and the beveled edges of the valves being faces to fit thereto, as herein set forth.

In witness whereof I have hereunto subscribed my name this sixth day of April in the year of our Lord one thousand eight hundred and fifty ve, rat the city and cpuipy of New York in the State of New JAMES F. SMITH, DANIEL F. BoRDoN. 

